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Randomized Controlled Trial
. 2012 Jan;91(1):62-67.
doi: 10.1111/j.1600-0412.2011.01262.x. Epub 2011 Oct 24.

Does exercise during pregnancy prevent postnatal depression? A randomized controlled trial

Kristian M Songøygard  1 , Signe N Stafne  2   3 , Kari Anne I Evensen  2   3 , Kjell Å Salvesen  1   4 , Torstein Vik  1 , Siv Mørkved  2   3
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Free article
Randomized Controlled Trial

Does exercise during pregnancy prevent postnatal depression? A randomized controlled trial

Kristian M Songøygard et al. Acta Obstet Gynecol Scand. 2012 Jan.
Free article

Abstract

Objective: To study whether exercise during pregnancy reduces the risk of postnatal depression.

Design: Randomized controlled trial.

Setting: Trondheim and Stavanger University Hospitals, Norway.

Population and sample: Eight hundred and fifty-five pregnant women were randomized to intervention or control groups.

Methods: The intervention was a 12 week exercise program, including aerobic and strengthening exercises, conducted between week 20 and 36 of pregnancy. One weekly group session was led by physiotherapists, and home exercises were encouraged twice a week. Control women received regular antenatal care.

Main outcome measures: Edinburgh Postnatal Depression Scale (EPDS) completed three months after birth. Scores of 10 or more and 13 or more suggested probable minor and major depression, respectively.

Results: Fourteen of 379 (3.7%) women in the intervention group and 17 of 340 (5.0%) in the control group had an EPDS score of ≥10 (p=0.46), and four of 379 (1.2%) women in the intervention group and eight of 340 (2.4%) in the control group had an EPDS score of ≥13 (p=0.25). Among women who did not exercise prior to pregnancy, two of 100 (2.0%) women in the intervention group and nine of 95 (9.5%) in the control group had an EPDS score of ≥10 (p=0.03).

Conclusions: We did not find a lower prevalence of high EPDS scores among women randomized to regular exercise during pregnancy compared with the control group. However, a subgroup of women in the intervention group who did not exercise regularly prior to pregnancy had a reduced risk of postnatal depression.

Trial registration: ClinicalTrials.gov NCT00476567.

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